550961 divided by 16 
The aim is to understand the frequency of 16 in 550961.

Moving on to step 1:
The number 16 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 16

Advancing to step 2:
When dividing 55 by 16, we get 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 7 after subtracting 48 from 55.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 16

Let's proceed to step 3:
The number 16 fits into 70 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we subtract 64 from 70, we get 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 16

Moving on to step 4:
16 goes into 69 4 times with a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 344.0
If we subtract 64 from 69, we get 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 16

Let's proceed to step 5:
56 divided by 16 is 3 with a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 3443.0
Subtract 48 from 56 to get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 16

On to step 6:
81 divided by 16 is 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 34435.0
The remainder is 1 after subtracting 80 from 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
10 divided by 16 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 34435.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
100 divided by 16 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 34435.06
If we subtract 96 from 100, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
The number 16 fits into 40 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 34435.062
If we subtract 32 from 40, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
When dividing 80 by 16, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 34435.0625
The remainder is 0 after subtracting 80 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
When dividing 0 by 16, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 34435.0625
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 12:
When dividing 0 by 16, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 34435.0625
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 34435.0625 and a remainder of 0.0.